靡不有初，鲜克有终
mǐ​bù​yǒu​chū​xiǎn​kè​yǒu​zhōng

all have a beginning, but few have an end

靡不有初，鲜克有终 靡不有初，鮮克有終 mǐ​bù​yǒu​chū​xiǎn​kè​yǒu​zhōng
all have a beginning, but few have an end
Originally meaning that most things start out well but few are carried through to completion, this idiom is used as a warning to be steadfast and finish what one has started.